Bookkeeping machine



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BOOKKEEPING MACHINE Filed Aug. 15. 1939 1'? sheets-sheet 17 PatentedDec. 22, 1942 Booxxnnrnvo MAcmNE Johannes Sobisch, Bielefeld, Germany;vested in the Alien Property Custodian npplicsan August 15,1939, sensiNo. 290,207

In Germany August 16, 1938 8 Claims.

The invention refers to a machine for entering bookkeeping, statisticalor similar records, and, provided with a device for tabulating andwriting numeric values.

ues, the cents values are written in groups of' two digits and areseparately entered.

This subdivision has heretofore, for instance in l the case' ofcalculating-typewriting f machines, been carried out by forming thereading spaces by depressing spacing keys or by interposing point orcomma characters. Machines capable of recording the totals have, withthe exception of so-called comma spacings, no further 'subdivision ofthe written numeric values into 'reading groups.

Aside from this, these prior art constructions have the disadvantagethat the subdivision of a numeric value in groups depends upon theattention of the operator. This occasionally produces disturbancesdue tothe inattention of the operator by occasionally omitting the groupingspaces in tabulating a number of values, and thus produces anunattractive appearance of such tabulations. Especially the lack oigroup spaces in automatic totaling renders the reading very difcult.

In bookkeeping and calculating machines the printing devices areprovided with a ccrrespond-- ing rigid group division by providingreading spaces or rigidly inserted point Ior comma characters. 'Ihedivision for numeric values-v indicating quantities, each containingthree numbers, is partly accomplished by suspending for the time beingthe group of two numbers representing cent values whereby, however, twocount- Y ing mechanism digits are lost.

According to the present invention these dis` advantages are avoided byproviding a control device cooperating with the digit controller, which.device operates in accordance with a previously-made adjustment whichautomatically produces the insertion of reading spaces in all columns.

The invention is illustrated in ing drawings, in which v Figs. la, 1b,lc represent a. wiring diagram of the entire arrangement.

the accompanyi ('Ci. 191ml) Fig. 2 represents a supplement of thediagram, Fig. 1.

Figs. 3 through 5 represent a group of Contact cams for controllingcertain contacts, shown in Fig. l, ln dierent operating positions. Figs.6a, 6b represent the mechanism for transferring numeric values or' thelike to the typing,

y calculating or other devices.

Figs. 7a, 7b represent thec'olumn width setting l 0 mechanism. i

` Fig. 8 represents a detail of Fig. 6 in plan view.

Fig. 9 represents a detail of Figlia.

Fig. 10 represents the digit sequence setting mechanism. f

Fig. il is a vertical sectional viewJ of the typing mechanism. l

Fig. llais a detailvlew of part of the escapement mechanism of thetyping mechanism.

Fig. 12 represents a front view of the indicator device forpredetermining the column width and the reading spaces.

Fig. 13 represents the indicator device according to Fig. 12in sectionalelevation.

Fig. la represents a drive for the operating elements controlling thereading spaces.- l

Fig. 15 represents a front view of the indicator plate for adjusting thedate and the book index values or the like.

Fig. 16 represents a sectional elevation of the Figs. 17o, 17h representa portion of the blank on which the entries are typed.

Fig. 18 is Aan isometric view of anlmportant part of Figs. 6a, 6b,wherein the Operating elements are shown moved apart for clearness sake.Fig. 19 shows an isometric view of the main part of Fig.- 7, wherein theoperating elements are shown moved apart for clearness sake.

Fig. 2u 'represents the mechanisms of the date-key.

Fig. 21 shows particular controlling mechanisms in addition to Fig. 1a.c

Referring first to Figs. 6a, 6b, a. multi-selector 2 is mounted on anintermediate longitudinal wall I ofthe machine. The electricalconnections of Athis selector are shown in Figs.' 1a, 1b. The selectoris composed o1' six individual selectors 3 through 8 in Figs. 1a, 1b. InFigs. 6a, 6b, the selectors l through 8 are assumedJ to lie one behindthe other; the selector 3 does not appear in this view. Accordingly,also the "switching arms 9"through'|4 are mounted on a common axle I5and prevented from laterally moving d thereon and are electricallyinsulated therefrom. 5v The contacts IG through 25o! each individualindicating device behind the plate, Fig. 15, and

selector are connected respectively through conductors 26 through 3| toa cable 32 which leads to calculating or perforating or other mechanismswhich may be required in the system b ut which are not illustrated heresince they have no bearing on the present invention. In the electricconnection, as shown in Figs. 1a, 1b, similarly located Contacts |16through 25 of the individual selectors 3, 4 are connected by conductors26, 21. The switch arm 9 of the selector -is divided into as manycontact fingers as there are contacts in the particular selector, (Fig.la), extending backward from the contact I6 in the direction opposite tothe movement of the switch arm. The first finger of the switch arm 9 ofthe selector 3 lags behind the switch arm I of the next followingselector 4 connected with it by one contact distance.

A gear Wheel 33, shown in Fig. 6a keyed to shaft I5, meshes with a rackbar 34 which is guided on Wall I by means of pins 35. The forward end ofrack bar 34 is tur-ned at right angles to form a hook 35", shown in Fig.8, which engages behind a. hook 36 provided at the rear end of anotherrack bar 31, also slidingly disposed on wall I by means of pins 38. Thelatter rack bar meshes with a gear wheel 39 which is keyed to shaft 40.On shaft 49 is also fixed a bell crank-shaped contact arm 4| which isdisposed to cooperate with contacts 42 through of a spacing switch 52,while the lagging arm 53 of bell crank 4I will contact with the nrstcontact 42 when the leading arm 54 of the bell crank has passed the lastcontact 5| by one contact space.

Both rack bars 34, 31 have for a given distance uniformly-spaced ratchetteeth 55, 56, be-` tween which can engage respectively thespringcontrolled pawls 51 and 58 of the double-armed levers 59. 60pivotally mounted on wall I. In their resting positions, pawls 51. 58are held outside of the range of rack bars 34, 31 by means of supports6I, B2 respectively. The double levers 59, 60, which 4are journalled onaxles 63, 64 respectively, are connected by means of a coupling bar 66with a lever 61 pivotally mounted on an axle 65. Lever 61 is actuated bymeans of a connecting rod 68 from a drive disc 69 which is mounted onone of the drive shafts |31 of the machine. On the respective axles 63,64, 65 are mounted bell cranks 10, 1|, and 12, and each bell crank canbe connected with its appertaining lever 59, 60, 61 by a step and pawlconnection 13, 14; 15, 16; 11, 18. Lever 61 is coupled by Way of a link19 with a lever 80 which is provided with the step sector 8| by which itcan actuate a three-armed lever 83. The pawl and step drives 13, 14; 15,16; 11, 18; 82, 8| are disposed to be actuated, respectively, bvelectromagnets 83 through 86, as shown in Figs. 6a, 6b, and l. All pawlsare assumed to be spring-controlled, thereby tending to engage theirrespective steps, but are normally prevented froml such engagement bythe armatures of their respective electromagnets.

Three-armed lever 83 is provided at its lefthand end in Fig. 6a with abent-over end 81 by which the contact group 88 can be actuated. The end89 of this lever carries a pi'n 90 at its end by which a rocker 9|`pivoted at 9|"I is actuated. Rocker 9| controls a locking pawl 92, thetooth of which is disposed to normally engage the ratchet teeth 56 ofrack bar 31. If

pawl 92 is lifted oir the ratchet bar by rocker.

latch. 93 which also engages rocker 9| in the pawl-lifting position.This occurs during a certain period in the operation of the machine. Theshank 94 of bell crank 12 has pivotally attached to it a rocking bar 95which is connected at its other end to a cam 96 which controls a contactgroup 91. A key 98 is pivotally attached to wall I and spring-controlledas shown. By the depression of this key, a multicontact 99 can becontrolled.

Against the forward face of bent-over end 35 of rack bar 34 bears a pin|00 (see Figs. 7a and 8) which is carried by a spring-controlled lever|0| pivotally attached to wall This pin is controlled by the end |02 ofa rack bar |03 slidingly mounted on wall I. 'Ihis rack bar carries arocker |01 pivotally mounted thereon at |01", which rocker is disposedto engage, together with an extension |05 of rack bar |03, the detent|06 of a further rack bar |06. With rack bar |08 meshes a toothed hub ofan adjusting lever |08. The end |09 of this lever is bent at rightangles and cooperates with the at detents ||0 of the armatures of theseveral electromagnets ||3 through ||1. As will be explained moreparticularly later the arrangement, as shown in Fig. 9, is such that inone position of the armature the detent |09 of arm |08 can freely passthrough the armature, and in another position of the latter it engagesthe armature. The electromagnets ||3 through ||1 serve for thelimitation of the column width for l0, l0-1, l0- l0-3, etc. digits. Thecontrol arm |08 is limited in its motion by a ixed pin I8 whichdetermines its resting position and sets the machine for an effectivecolumn width of 10--4 digits. Therefore an electromagnet for setting thecolumn width 10-4 digits is unnecessary. The electromagnet I|1 assignedto the column width 10-5 digits and, in connection with the pin ||8 (asexplained later), to the column width 10-9 digits, controls an armature580 which engages the forked end of rocker 58|. Each armature coactswith its appertaining latch ||9 provided with a step |20. The detent I2Iof each latch is located within the range of a corresponding edge |22 ofa resetting element |23.

With rack |03 meshes a gear wheel |24 which is coupled by Way of vafriction coupling with the pinion |25. 'Ihe pinion in turn meshes with atoothedsegment |26which extends beyond its axle |21 in the oppositedirection in the form of a sector |28. The latter carries twospring-controlled pawls |29, |30, which cooperate with steps |3I, |32respectively of a dog disc |33. This disc is connected by way of a linkconnection |34, |35 and crank |36'with a drive shaft |31 mounted in themachine. Drive shaft |31 and also shaft |38 (which drives gear 89 inFig. 6a) are connected by a drive gear not shown here.

The previously-mentioned pawl |30 is controlled by the armature |39 ofan electromagnet |40 (see Figs. 7b, 1c). The dog disc |33 acts with itspin |42 upon a drag element |43 to which is connected a lever` |44disposed to close a contact |45 and, at the same time actuate theresetting element |23 (Figs. 7a, 1c). Toothed segment |26, previouslymentioned, carries further a pin |4| engaging the step 59| of drag |43.Contact |45, which is directly connected with a current source, is alsoconnected by means of a wire |46 with an electromagnet |41 (Figs. 1c,10), the armature |48 of which coacts with the detent arm 2000 of a pawl|49 to control the engagement of the pawl with a notch |50 of a couplingarm tidl of the pand ill?.

' |98 of the same contact group.

asoavos 3 Juniformlyg-spaced ratchet teeth of a ratchet bar 1o |50 whichis slidin'gly mounted in the machine and which is also provided withuniform gear teeth which mesh with 'av gear wheel |0I. This gear-"wheelcarries a. switch arm |52 which is coordinated (Figaio, 1e), forinstance, with the 15 ten-digit contact group |03 through |12 of acolumn sequence selector.

The left-hand end llt of rack bar l in Fig. lo is disposed so that whenthe rack bar is shifted, it engages a pin |75 of double-aimed g@ lever|16. This lever carries at its upper end a spring-controlled pawl l'ldisposed so that it t can engage a notch |70 in coupling bar tdi. Thetime at which thisengagement occurs and its electromagnet Edd, whichcoasts with a datent Deenergiaation of 'electromagnets M1 and ltcausesthe pau/ls Mt and l'll to be disengaged from the coupling bar ISI. 30

Contact group iBS-|12 of the column sequence selector has its individualcontacts respectively connected by means of conductors to |84 etc. tothe switch arms |85, |30 ofthe columns one tol ten, Contact arms Edil;|500 (Fig. 13) are each non-conductively coupled with an adjusting andsetting disc ywhich carries an arm |80 which prctrudes through a slot|00 (Fig. 12) of a cover plate lul provided in the ma- 40 Walls me@ mldA 2mm chine. Adjacent to each slot is provided a scale |92'- carryingthe numerals El to 9 by which the number of the idle digits of s. columncanbe easily recogrnafed. Corresponding with 'the combination systemwhich is determined by the electromagnets itt to lll (Figs. lc, 'lol andpin H8, and whichcrrns the basis oi the disconnecting or elimination ofdigits, the five highest digit individual contacts i90 through 202 ofcontact groups |933 through 202 of the column width selector |8'| areshort-circuited by bridges 203 and connected by way of a conductor 20dwith electromagnets Hl. Theremaining individual magnets H3 through H6respectively. The switch arm lengages the first contact |93 of itscolumn width selector at a time when the leading contact arm |85 standslupon the contact tioned groups of contacts with their connections' 'tothe conductors 203 are necessary because the velectromagnets are alsoadjustable by perforations of cards. Theseperiorations are punched by acombination code.

the higher digitsy provision is made for two holes (455,! ll-lfl 4424439)). Y l

From the contact groups 209 through 2|9 of the' selectors 220 (Fig. 1b)of, for instance, a 70 ten-digit adjusting mechanism 22|, conductors222`through 232 lead respectively to electromagncts 233 to 242 of atyping mechanism 244, and

The aforemen- Thereby for the digits l to 5 only one hole is provided,whereas for the re one or several further typing mechanisms 2517. Witheach of the electromagnets is associated an armature 250 (Fig. 11),which in each case controls an individual pawl 259. These pawls areindividually supported by bell cranks 260 and are disposed so that theycan move with their steps 26| into the path of a crossbar of aball 252,which is carried by two parallel bell cranks 263. .The other arm of eachof these bell cranks carries a roller 253B' which cooperates with camdiscs 26d ofthe driving mechanism. -The arms 264my of bell crank 260,assigned to the numerals "0 to 3, 9, and the idle stroke release,actuate individual contacts 205 to 210 (see also Figs. la, lb). On theother hand, the bell cranks 200 which are assigned to the numerals "5 to"8 act uponl the double contacts 2H to 274. All individual and doublecontacts serve for transmitting values to be written to calculating, per

forating or other mechanisms which may be provided in the machine. Ainthe present example no such contacts are associated with the typingmechanism 25|. The arms 26de of bell cranks 20d are linked to individualbars Ell which act duration are controlied by the armature ll@ of an 25upon the mechanism which actuates the typing levers or the like of thetyping mechanism. The typing mechanism comprises a set of type bars |00!adapted to print upon a record sheet supported upon a platen roller |035rotatably mount ed in a carriage |030. The carriage has grooved rollers|0371 at its rear end adapted to travel upon a rod i030 and Wheels i039at its front end adapted to travel upon a flat bar Mldll. Each type barwill is actuated by an appurtenant key bar |002 throughs bell cranklever |0616. The

' escapement mechanism for the carriage w36 comprises a rack bar 20H5with which engages a pinL ion 20H xed to an arbor 200B rotatablysupported upon set screws 200? Ymounted on 'frame The shaft 2000 alsohas fixed to. it a ratchet Wheel 2060 with which coacts an escapementdog 20M. This escapenient dog is in' the form of a bell crank leverpivotally supported'upon pivot screws 2003 and carrying upon itsupwardly directed arm a fined tooth 20|@ and a pivoted tooth 2085. IThelatter is normally held by a spring lutti one tooth pitch in advance ofthe fixed tooth 20%. A spring 2002, connected to the arm 20m of the bellcrank lever 2004,

. tends to turn the latter in clockwise direction. A

universal bell crank 'member comprising arms 20|'2 and 20H is pivotallymounted at ttul on the frame wall 2006. The arm. 20M bears upon the arm20|3. of the escapement member, while the arm 20Hv has fixed to itsupper end a horizontally extending universal bar 2005. A. stop |095limits the movement of the two bell crank members under the urge ofspring'. 2002. Each key bar |002 is connected by a link |003 to a bellcrank lever |004. The upper end of the bell crank lever has a pin andslot connection with a bar |042 supported by a link |098 at its frontend and slidably guided in a hole |091 in frame wall 2006 at its rearend. All of' theba-rs |042 bear at theirrear ends against the universalbar 2009, which consequently rocks the escapement member 2004 when eachkey is actuated. A conventional carriage feed mechanism is provided,comprising a tape |095 connected at |093 to the near frame member ofcarriage |036 and Wound upon zzoil spring box |095 rotatably mounted atcte end (Fig. 11) of `frame Wall 2005.

Switching arms y215 of the selectors 220 of the adjusting mechanism 22|'are connected by in-

